(28) Bellona
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Asteroid (28) Bellona 
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| Properties of the orbit ( animation ) | |
| Orbit type | Main belt asteroid |
| Major semi-axis | 2,776 AU |
| eccentricity | 0.15 |
| Perihelion - aphelion | 2.359 AU - 3.193 AU |
| Inclination of the orbit plane | 9.4 ° |
| Length of the ascending node | 144.3 ° |
| Argument of the periapsis | 344.4 ° |
| Time of passage of the perihelion | March 9, 2011 |
| Sidereal period of rotation | 4 a 228 d |
| Mean orbital velocity | 17.8 km / s |
| Physical Properties | |
| Medium diameter | 121 km |
| Albedo | 0.18 |
| Rotation period | 15 h 42 min |
| Absolute brightness | 7.1 likes |
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Spectral class (according to Tholen) |
S. |
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Spectral class (according to SMASSII) |
S. |
| history | |
| Explorer | KTR Luther |
| Date of discovery | March 1, 1854 |
| Source: Unless otherwise stated, the data comes from JPL Small-Body Database Browser . The affiliation to an asteroid family is automatically determined from the AstDyS-2 database . Please also note the note on asteroid items. | |
(28) Bellona is an asteroid of the main belt that was discovered on March 1, 1854 by Karl Theodor Robert Luther at the Düsseldorf observatory . The celestial body was named after Bellona , a goddess of war from Roman mythology .
Bellona has a diameter of 121 kilometers. It has a light, silicate-rich surface with an albedo of 0.18.
It rotates around its own axis in around 15 hours and 42 minutes.